hun, i had a blighted ovum years ago before my son, and was as sick as a dog; same as this pregnancy...... blighted ovums are basically a developing pregnancy where the actual baby never appears - my gestational sack grew until 9 weeks and i had morning sickness, sore boobs, spots.....
hun, i am the last person to say this after the way i've worried this time BUT try stay relaxed - you are probably just lucky and just remember, with my son, i had not one symptom at all for 9 months - so you may be team blue!